At that time, John the Baptist came preaching in the wilderness of Judea, "Repent, for the kingdom of heaven is at hand." For this is he who was spoken of by the prophet Isaiah when he said, "The voice of one crying in the wilderness: prepare the way of the Lord, make his paths straight." Now John wore a garment of camel's hair, and a leather girdle around his waist; and his food was locusts and wild honey. Then went out to him Jerusalem and all Judea and all the region about the Jordan, and they were baptized by him in the river Jordan, confessing their sins. (Matthew 3:1-6)